fix: src/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-URLLIB3-7267250

src/requirements.txt

@@ -16,4 +16,4 @@ pyparsing
 pandas
 
 kivy==2.0.0rc2
-zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability